STC12LE5616AD datasheet(159/377 Pages) STC

159 / 377 page

while (1)

{

RXD = 1;

//ready read RXD port

while (!RXD);

//check RXD

_nop_();

PCON = 0x02;

//MCU power down

_nop_();

P2++;

}

2. Assembly program

/*-----------------------------------------------------------------------------------------------------------------------------*/

/* --- STC MCU International Limited --------------------------------------------------------------------------------*/

/* --- STC 1T Series MCU Power-Down wakeup by RxD Demo -------------------------------------------------*/

/* ---This Interrupt will borrow RxD interrupt request bit RI and its interrupt vector address ----------------*/

/* ---So UART function should be disabled when this Interrupt is enabled --------------------------------------*/

/* ---The enable bit of this Interrupt is RXD_PIN_IE / WAKE_CLKO.6 in WAKE_CLKO register --------*/

/* If you want to use the program or the program referenced in the ----------------------------------------------*/

/* article, please specify in which data and procedures from STC ----------------------------------------------*/

/*-----------------------------------------------------------------------------------------------------------------------------*/

;/*Declare SFR associated with the RxD */

WAKE_CLKO

EQU

8FH

;-----------------------------------------

ORG

0000H

LJMP

MAIN

ORG

0023H

UART_ISR:

JBC

RI,

EXIT

;clear RI flag

EXIT:

RETI

;-----------------------------------------

159

STC12LE5616AD Datasheet(PDF) 159 Page - STCmicro Technology Co,.Ltd

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